402282 has 12 divisors (see below), whose sum is σ = 871650. Its totient is φ = 134088.

The previous prime is 402277. The next prime is 402299. The reversal of 402282 is 282204.

402282 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 16641 = 621^2 + 129^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 22349 = 402282 / (4 + 0 + 2 + 2 + 8 + 2).

It is an Ulam number.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11157 + ... + 11192.

2⁴⁰²²⁸² is an apocalyptic number.

402282 is an abundant number, since it is smaller than the sum of its proper divisors (469368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402282 is a wasteful number, since it uses less digits than its factorization.

402282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22357 (or 22354 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 402282 is about 634.2570456842. The cubic root of 402282 is about 73.8204803582.

Adding to 402282 its reverse (282204), we get a palindrome (684486).

The spelling of 402282 in words is "four hundred two thousand, two hundred eighty-two".